After searching all the 1080i threads I finally have stable 1080i working with a custom modeline and the usual workarounds. The problem I have with my Samsung HDTV, however, is that the fields are reversed. Eg, the scanlines go

2,1,4,3,6,5,8,7,10, etc.

Is there any option to invert fields? Is there any subtlety with explicit modelines that can cause field inversions? Any options on what to try from here? I'm running with 100.14.09 and this is the first time I've been able to get this close since back in the 8000's.